Baker s oven



3 Sheets--Sheet 1. H. WILD.

BAKERS OVEN.

(No Model.)

No. 366,363. Patented July 12, 41-887.

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3 Sheets-Sheet 2. H WILD BAKBRS OVEN.

(No Model.)

N0. 366,863. .Patented July 12, 1887` -l'i H e, v #wf/won ATTORNEYS,

(No Model.) 4 3 Sheets-Sheet 3. Y

H. WILD.

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Patented July 12, 18487.

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UNITED STATES PATENT OEEICE.

HERMANN VILD, OF BROOKLYN, NE YORK.

BAKERS OVEN.

SPECIFICATION forming part of Letters Patent No. 366,363, dated July 12, 1887.

Application filed November 17, 1880. Serial No. 219,1l4. (No model.)

To aZ whom, it may concern:

Be it known that l, HERMANN WILD, of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Bakers Ovens, of which the following is a specification.

This invention relates to an improved ccnstruction of bakers ovens of that class in which the baking-chamber is heated by means of longitudinal fines arranged below the bottom andin the arched crown of the bakingchamber,whcreby a uniform degree of heat is established and a very effective and economical construction of bakers ovens obtained.

The invention consists of a bakers oven the baking-chamber of which is heated up by longitudinal tlues arranged below the bottom of the same, and by longitudinal lues arranged in the arched crown, said crown being composed of hollow communicating lire-brick and separating solid bricks. The products of combustion pass through the bottom and crown fines and from the latter through auxiliary top-fines to the chimney, as will more fully appear hereinafter, and iinally be pointed out in the claims.

In the accompanying drawings, Figure' 1 represents a front view of my improved bakers oven. Fig. 2 is a vertical transverse section on line .t a?, Fig. l. Fig. 3 is a vertical longitudinal section on line y y, Fig. 2;` and Figs. 4, V5, G, and 7 are horizontal sections, respectively, on lines .e z, 7c 7c, ZZ, and on. m, Fig. 3.

Similar letters of reference indicate corresponding parts.

In the drawings, A represents the bakingchamber of my improved bakers oven,which chamber is built in the usual manner of lirebricks with a ilat bottom and arched crown. Below the bottom orfloor of the baking-chamber are arranged longitudinal iiues a a, which communicate with the fire-place B, the bottom ilues being divided bya central partition-wall, c, into two symmetrical groups, as shown clearly in Fig. 4. The products of combustion pass from the tire-place B, that is prel'erably arranged at the rear end of the oven, through the iiues a toward the front wall, thence back again and around a partition-wall, a2, at each side of the oven toward the front wall, as indicated by arrows in Fig. 4. The products of combustion are then conducted through vertical tlues a to a series of longitudinal dues, b b, which are arranged in the arched crown and separated by a central partition, b', into two groups, as shown in Fig. G.

The longitudinal crown-dues b b are constructed of a series of hollow communicating bricks, b2, which are separated by intermediate solid bricks, 1), as shown clearly in Fig. 2. The longitudinal crown-lines I) b pass through the front wall of the casing and are closed by detachable caps, .so as to be conveniently cleaned of soot and ashes. rlhe products of co m bustion pass backward and forward through the crown-ducs b I), and then through short vertical connecting-dues b* into auxiliary top fines, d d, as indicated by arrows in Figs. G and 7 The auxiliary top flues, d, are of less length than the crown-dues b b, and communicate by a transverse iiue, d', at their rear ends and a diagonal flue, d2, with the chimney C, as shown clearly in Fig. 7. rIhe vertical eorneriiues, a, are provided withdampers c, which are operated by damperrods c from the front of the oven, so as to regulate the draft in the flues a I) d.

The fireplace B is provided with inner and outer doors that inclose the spacein front of the grate-bars, from which space extend in the rear wall of the oven lateral flues f, which communicate by vertical flues f and horizontal lines f2 with the chimney, as shown in dotted lilies in Fig. 7.

The tlues fff serve not only for the purpose of drawing off the dust and ashes produced in raking up the fire, but also for ventilating the space in front of the fire-place, so that no coal-gas generated by the partial combustion offuel can escape and annoy the attcndants.

The baking-chamber A is providcdwith a Haring mouth of the usual construction, and is closed by hinged doors arranged in the front wall of the oven. In the rear wall of thc bakiug-chamber is arranged a vertical flue, g, which connects the bakingchamber by a horizontal flue, g2, with the top flue, d2, so as to convey the steam and moisture in the baking chamber to the chimney and release Y thereby the baking chamber of excessive pressure. When the moisture has been drawn off from the baking-chamber, a damper, g', in

I my improved bakers oven consists in the simple construction of the crown-fines, by which the upper part of the baking-chamber is retained at a constant temperature. As these flues are constructed entirely of hollow refractory bricks, which form a partv of the arched crown of the chamber itself, no iron beams or other supports are required. The bottom and crown ilues keep up a uniform heat in the bakingchamber and facilitate the erection of the furnace,r as all the parts forming the dues are ready to be put up in regular order by the ovenbuilder. The heat of the products of combustion is fully utilizedV by drawing the same successively through the bottom dues, crown-dues, and auxiliary dues above the crown-fines, which latter serve to keep that portion of the oven next adjoining the front Wall at the same temperature 'as the rear part of the oven, which is naturally kept warmer by the more direct action of the fire on the'walls of the rear part. YThe auxiliary flues also serve to Autilize the heat still contained in the gases of combustion after vthey have passed through the crownues, so that the oven is economical' in fuel, while it is con-VY veniently operated owing to the absence of obnoxious gases.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination of a baking-chamber, longitudinal flucs arranged below the bottom of said bakingchamber,` longitudinal ues arranged in the crown of the bakingchamber and connected with the bottom fines, said crown-fines being constructedof hollow communicating bricks and separated by intermediate solidbricks, substantially as set forth.

2.- The combination of a baking-chamber, a series of longitudinal flues arranged below the bottom of the baking-chamber, and divided into two groups opening to the same fire-charn- `ber by a central longitudinal partition, a se ries of longitudinal fines arranged in the arched crown of said chamber and divided into two groups by a central longitudinal partition and connected with the bottom flues, and a series 'ofauxiliary ilues arranged above the crown-dues and connected therewith and with the chimney, substantially as set forth. 3.' The combination of a baking-chamber, longitudinal bottom iues below the bottom of the same,'longitudina1 fines arranged in the arched crown of the baking-chamber, Vertical lues connecting the bottom and crown tlues, a series of auxiliary iiues arranged above the crown-dues at the front part of the oven, vertical ilues connecting the crown-dues with said auxiliary fines, and a diagonal ilue 'connecting the auxiliary flues and the oven-Hue with the chimney, substantially as set forth.

' In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

Witnesses:

PAUL GOEPEL, MARTIN PETRY. 

